The warning light for ABS have been coming on a few times during last few weeks. My mechanic told me that the ABS system is failing and has to be repaired/replaced and cost about $600. Wow!?. I called another place, they said they should run a diognostic test then they can tell me what the problem is and how much it cost. They said it may cost up to $3000.???? I like to know more about ABS system, considering I do not know much about cars. how often do they go bad anyway? I have 104,000 miles on my car. Do breaks work without ABS? Is it safe? I thought it was a little computer chip that monitors the break to lock up. Thank you all.